Finding the Fourth Proportional to 2,080.38, 2,869.67 and 1,240.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.38 : 2,869.67 = 1,240.53 : x
2. Step 2: Convert to fraction form
   2,080.38/2,869.67 = 1,240.53/x
3. Step 3: Cross multiply
   2,080.38x = 2,869.67 × 1,240.53
4. Step 4: Simplify right side
   2,080.38x = 3,559,911.73
5. Step 5: Solve for x
   x = 3,559,911.73/2,080.38
6. Step 6: Final answer
   x = 1,711.18